Clear Ip Helper Statistics; Ip Helper-Address (Global Config) - Ubiquiti EDGESWITCH ES-24-250W Command Reference Manual

EdgeSwitch CLI Command Reference
Note that if the packet matches a discard relay entry on the ingress interface, then the packet is not forwarded,
regardless of the global configuration .
The relay agent only relays packets that meet the following conditions:
• The destination MAC address must be the all-ones broadcast address (FF:FF:FF:FF:FF:FF)
• The destination IP address must be the limited broadcast address (255 .255 .255 .255) or a directed broadcast
address for the receive interface .
• The IP time-to-live (TTL) must be greater than 1 .
• The protocol field in the IP header must be UDP (17) .
• The destination UDP port must match a configured relay entry .

clear ip helper statistics

Use this command to reset to zero the statistics displayed in the
command .
clear ip helper statistics
Format
Mode Privileged EXEC
Example: The following shows an example of the command .
(UBNT EdgeSwitch) #clear ip helper statistics

ip helper-address (Global Config)

Use this command to configure the relay of certain UDP broadcast packets received on any interface . This
command can be invoked multiple times, either to specify multiple server addresses for a given UDP port
number or to specify multiple UDP port numbers handled by a specific server .
Default No helper addresses are configured.
ip helper-address server-address [dest-udp-port | dhcp | domain | isakmp |
Format
mobile-ip | nameserver | netbios-dgm | netbios-ns | ntp | pim-auto-rp | rip |
tacacs | tftp | time]
Mode Global Config
Parameter
server-address
dest-udp-port
port name
Ubiquiti Networks, Inc.
Description
The IPv4 unicast or directed broadcast address to which relayed UDP broadcast packets are sent. The
server address cannot be an IP address configured on any interface of the local router.
A destination UDP port number from 0 to 65535.
The destination UDP port may be optionally specified by its name. Whether a port is specified by its
number or its name has no effect on behavior. The names recognized are as follows:
• dhcp Port 67
domain
• Port 53
• isakmp Port 500
• mobile-ip Port 434
nameserver
• Port 42
• netbios-dgm Port 138
• netbios-ns Port 137
ntp
• Port 123
• pim-auto-rp Port 496
• rip Port 520
tacacs
• Port 49
• tftp Port 69
time
• Port 37
Other ports must be specified by number.
show ip helper statistics
Routing Commands
353